Herb & supplement monograph

Ligilactobacillus Salivarius Drug Interactions, Uses, Effectiveness, Safety & More

Medically reviewed by Dr. Brian Staiger, PharmD, BCPS ·Updated July 2026

What is this page for?

First and foremost: how Ligilactobacillus Salivarius interacts with medications. The heart of this page is the interaction list — every drug Ligilactobacillus Salivarius is known to interact with, and how serious each one is.

But these pages have grown well beyond that into a full monograph — what Ligilactobacillus Salivarius is, what people use it for and how strong the evidence is, its safety and side effects, and answers to the questions we’re asked most — written and reviewed by the clinical staff at HelloPharmacist. It’s educational information from our licensed clinical databases, not medical advice, and we don’t sell or endorse products. Our editorial policy

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On this page

Ligilactobacillus Salivarius Drug Interactions: The Bottom Line

From the HelloPharmacist Editorial Team · Updated August 2026

Based on the available evidence, the overall risk of a clinically significant Ligilactobacillus Salivarius drug interaction appears low for most people, because the main concern is medications weakening the probiotic rather than the probiotic causing harm. None of the listed interactions are rated major, and all of them come down to a single, well-understood issue with one class of medications.

Interactions deserving the most attention

The only interaction that stands out involves antibiotics. Because Ligilactobacillus salivarius products contain live bacteria, taking an antibiotic at the same time can kill many of those organisms and make the probiotic less effective. This does not make the antibiotic less safe or less effective; the effect runs in one direction, toward the supplement. Separating the two in time is the usual approach, and your pharmacist can advise on spacing that fits your antibiotic.

What the rest of the list means

Although the number of listed medications looks large, nearly all of them are simply individual antibiotics counted one by one, reflecting the same single concern. This is largely a theoretical effect on the probiotic itself, not evidence that these combinations harm people or change how the medications work.

Check your medications against Ligilactobacillus Salivarius

Based on HelloPharmacist’s Ligilactobacillus Salivarius interaction data and reviewed under our editorial standards.

Interaction report

Drugs that interact with Ligilactobacillus Salivarius

182 medications have a known interaction with Ligilactobacillus Salivarius, graded by severity. Select any drug for the full evidence-based detail.

Don’t want to scroll the list? Just ask.

Tell us the medications you take and we’ll check each one against Ligilactobacillus Salivarius using our pharmacist-reviewed interaction data.

AI summaries are generated from our Ligilactobacillus Salivarius interaction data for education only — always confirm with your pharmacist. How we use AI

2,830 drugs

Read The List Like a Pharmacist

What Severity, Likelihood & Evidence Mean

Severity — How Serious It Can Be

Major. Clinically significant; generally best avoided, or used only under direct professional supervision.
Moderate. May need monitoring, a dose adjustment, or separating the times you take each one.
Minor. Generally not clinically significant, but still worth noting and mentioning to your pharmacist.
No known interaction. Checked against our sources with nothing documented — not the same as proven safety.

Likelihood — How Well It’s Documented

Likely. Well-controlled human studies have demonstrated the likely existence of this interaction
Probable. Interaction has not been documented in well-controlled studies, however, the interaction has been demonstrated in some small human studies or in controlled animal studies in conjunction with multiple case reports.
Possible. Interaction has been documented in animal or in lab research, or the interaction has been documented in humans but is limited to case reports or conflicting clinical research exists
Unlikely. Interaction has been demonstrated in animal or in lab research but has been shown not to occur in humans.

Where This Data Comes From

Interaction records are evidence-graded and sourced from the Natural Medicines database (TRC Healthcare), the same reference used by pharmacists and hospitals.
Each drug listed above links to the full report for that exact Ligilactobacillus Salivarius combination — clinical detail, likelihood, evidence level, and citations.
Content is reviewed by licensed HelloPharmacist pharmacists — see our data sources and editorial standards.

The big picture

The kinds of drugs Ligilactobacillus Salivarius affects

Every type of medication (drug category) Ligilactobacillus Salivarius is known to interact with. Open any category for the detail — or search your exact drug in the checker above.

All 1 drug category Ligilactobacillus Salivarius interacts with

Antibiotic Drugs

Theoretically, taking Ligilactobacillus salivarius with antibiotic drugs might decrease the effectiveness of L. salivarius.
Ligilactobacillus salivarius preparations usually contain live and active organisms. Therefore, simultaneously taking antibiotics might kill a significant number of the organisms. Tell patients to separate administration of antibiotics and L. salivarius preparations by at least two hours.

Likelihood Probable Evidence D

Monograph

Ligilactobacillus Salivarius: Uses, Safety & Side Effects

Medically reviewed by Dr. Brian Staiger, PharmD, BCPS · Reviewed July 2026 ·

The bottom line

Ligilactobacillus salivarius (formerly called Lactobacillus salivarius) is a probiotic bacterium found naturally in the mouth and gut of humans and animals. People take it to support digestion, oral health, and immunity, but solid human evidence is still limited for most uses. It is generally well tolerated in healthy people, but those with weakened immune systems should check with a doctor first.

Scientific name: Ligilactobacillus salivarius
Family: Lactobacillaceae
Part used: Live bacterial cells (probiotic strain)
Common forms: Capsules, tablets, chewable tablets, powders, and some fortified foods or oral lozenges

People commonly use it for

Digestive and gut health
Oral and dental health
Immune support
Vaginal and urinary health
General probiotic supplementation

Popular and traditional uses — not proof it works. See “Uses & effectiveness” below for the evidence.

Safety at a glance

OverallUse caution

Generally well tolerated in healthy people, but caution is advised for those who are seriously ill or immunocompromised.

PregnancyPossibly Safe

When used orally and appropriately. Ligilactobacillus salivarius has been safely used from about 30 weeks' gestation or diagnosis of gestational diabe...

Read the full pregnancy detail

BreastfeedingInsufficient reliable information

There is insufficient reliable information available about the safety of Ligilactobacillus salivarius during lactation. However, there are currently n...

Read the full breastfeeding detail

Pregnancy & breastfeeding ratings are from Natural Medicines (Therapeutic Research Center). Safety guidance is general; always confirm with your pharmacist or doctor for your situation.

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Overview

Ligilactobacillus salivarius is a type of friendly bacteria, or probiotic. It was previously named Lactobacillus salivarius, but scientists reclassified it in 2020 into the new genus Ligilactobacillus. You may still see it listed under its old name on many supplement labels.

This bacterium lives naturally in the human mouth, intestines, and sometimes the vagina. It is also found in some animals and foods. Because it can survive in different parts of the body and may produce substances that limit the growth of harmful bacteria, it has become a popular ingredient in probiotic products.

People take it most often as capsules, tablets, powders, or oral lozenges. It is sometimes combined with other probiotic strains in multi-strain products.

How it works

Probiotics like Ligilactobacillus salivarius are thought to work in several ways. They may help crowd out harmful bacteria by competing for space and nutrients in the gut or mouth.

Some strains produce lactic acid and other substances called bacteriocins, which can slow the growth of certain unwanted bacteria. They may also interact with the cells that line the gut and with the immune system, possibly helping to support a normal immune response.

It is important to know that much of this information comes from laboratory and animal studies. How well these effects translate to real benefits in people is still being studied.

Effectiveness

Does Ligilactobacillus Salivarius work?

Here’s what the research actually shows for each use — graded by Natural Medicines and reviewed by Dr. Brian Staiger, PharmD.

Evidence overview · 17 uses evaluated

17 Insufficient evidence

How to read these evidence grades

Natural Medicines’ 7-point scale. We show each rating’s label word-for-word.

1EffectiveStrong, consistent evidence it works.

2Likely EffectiveGood evidence, though not yet conclusive.

3Possibly EffectiveSome evidence suggests a benefit.

4Possibly IneffectiveSome evidence it may not help.

5Likely IneffectiveFairly strong evidence it doesn’t help.

6IneffectiveStrong evidence it doesn’t work.

7Insufficient Reliable Evidence to RateToo little research to say either way.

For Ligilactobacillus Salivarius, current evidence isn’t strong enough to rate any specific use. The conditions it has been studied for are listed below.

Also studied for 17 conditions — evidence insufficient to rate

Insufficient Reliable Evidence To Rate Antibiotic-associated diarrhea